Computing-machine.



F. THINKS.

COMPUTING MACHINE.

APPLICATION FILED NOV. 5. 1915.

1 08,702, Patented Dec. 12, 1916.

PATENT OFFICE.

FRANZ THINKS, OF BRUNSWICK, GERMANY.

COMPUTING-MACHINE Specification of Letters Patent.

Patented Dec. 12, 1916.

Application filed November 5, 1915. Serial No. 59,789.

To all whom it may concern:

Be it known that I, FRANZ TRINKs, manufacturer, citizen of the Duchy of Brunswick, Empire of Germany, residing at Brunswick, Germany, have invented certain new and useful Improvements in Computing-Machines, of which the following is a specification.

My invention relates to computing or calculating machines and in particular to computing machinesof the type in which a setting-up wheel having a variable number of teeth actuates an accumulating mechanism which shows the result of each machine operation, as well as a printing device which causes the item set up, to be printed on a sheet of paper or the like. The relative position of the accumulating mechanism and the printing mechanism is such that the setting-up wheel, during its revolution, actuates in consecutiye order first the printing device and thereafter the accumulating mechanism.

The object of my invention is to provide means whereby any alteration in the setting of the accumulating mechanism may be prevented when it is desired to print a total.

My invention will be more clearly understood with reference to the drawings in which I have illustrated a machineof the type to which my invention is moreparticularly applicable. l

Figure 1 is a sectional elevation of a Inachine in which my invention 15.8mb0d16d.

Fig. 2 shows, in a plan view, the setting-up wheel and parts of the accumulating mechanism and the printing device, and Fig. 3 is a portion of a machine in which the settingup wheel is of a different construction.

Referring to the drawings, 0 is the setting-up wheel having a variable number of teeth 6. i

h designates the accumulating mechanism which shows the result of each operation.

70 is the printing device by means of which an item set up can be caused to be printed on a sheet of aper. The operative relation is such that if the wheel 0 is rotated in the proper direction, as indicated by the arrow in Fig. 1, the wheel 0 actuates first the printing device in and thereafter the accumulator h. The teeth 6 are pivotally mounted on the circumference 'of the wheel 0, the pivots Z being disposed radially. Each tooth .is formed as an angle piece with a short and a longer leg. Normally, the longer leg of each tooth is occupying-a position in the plane of the wheel, while the shorter leg is then disposed axially.

m are keys arranged in columns. When a key at is depressed, its stem or the like member connected to the key, will move into the path of the teeth 6 and will cause a swinging movement of all those teeth which pass the stem or the like member .of the depressed key when the wheel 0 is being revolved in the direction of the arrow. Thus, the teeth are turned into the position shown in Fig. 2 with respect to two teeth on the right hand side of the wheel 0; the longer legs of which project laterally from the wheel. If the revolving movement of the wheel 6 continues, the laterally projecting legs of the turned teeth are carried into the path of the intermediate wheel a which actuates the printing device is, and in thecourse of the further revolution into the path of the toothed wheel a forming a part of the accumulating mechanism.

Now, my invention relates to a machine of this type and is carried into effect as follows: lVhendt'is desired to cause the machine to print the total of the accumulated items, this total must first be set up by means ofIthe teeth e, whereupon the operating handle d is turned so that the total is also set up in the printing device 70. However, on the continuance of the rotation of the operation handle, the accunui-lating mechanism would also be actuated with the effect that its setting is incorrectly altered. It is the object of my invention to overcome this drawback. I attain this object by providing means for returning the teeth of the setting-up wheel from their operative posltion into inoperative. position after the same have passed the printing device 70 and before they are able to actuate the accumulating mechanism. The means for obtaining this effect may be variously constructed; a preferred construction is illustrated in the drawing. I have provided a shaft 1) on which are fixedly mounted arms a which by rotation of the shaft 1) can be moved so near the circumference of the setting-up wheel 0 as to project into the path of the projecting legs of the teeth 6. The wheel 0 revolving, the operative teeth 6 will strike the arms a, and thereby be swung back into inoperative position. Instead of providinga separate arm a for each setting-up wheel '0, the arms may be united into an axially extending concollar or hub Q) fixedly mounted upon the turned manually in the shaft 6. The collar or hub 21 has two notches or recesses it which correspond to the extreme positions of the shaft 6 and are adapted to engage the lug t of the spring 1-.

When it isdesired to cause a total to be printed in the machine, it is only necessary that the operator turns the shaft 6 and therewith the arms a or an equivalent plate, by means of the handle of the rotation of the main operating handle, the shaft 6 with its arm a may be resame manner in which it was swung into operative position. However, this return movement may also be effected automatically and before completion of the rotation of the operating lever,.by means of a pin or lug g or an equivalent member connected with one of the parts which are revolved through actuation of the operating lever.

The device according to my invention may just as well be applied in connection with setting-up wheels having teeth which are mounted to be swung about a non-radial axis or which are radially shiftable. An example of such in Fig. 3. In this construction the up of the teeth is accomplished by well nown cams p which simultaneously lock the teeth in their position in such a manner that the latter cannot be pushed back by any power acting upon the teeth from outside. For that reason the arrange ment in this case is such that the arms a or when swung into operaan equivalent plate, tive position, do not act upon the teeth directly to push them back but strike stops 0 provided on the cams p and thereby prevent further rotation that the, teeth are returned into their initial or inoperative position.

It is obvious that my invention is not restricted to the structure shown in the drawings, but that-various modifications may be made in the construction and disposition of the parts without involving a departure from settingmeans of the spirit of my invention.

What I claim and desire to secure by Letters Patent of the United States, is:

In a computing machine, the combination of an operable element, shiftable numeral-setting members on said element and adapted to be moved into and out of operative. position, a printing mechanism to be tive teeth into f. On completion Y a modification is illustratedof the cams with the efiect tion of an operable setting-up wheel, radially pivoted teeth on said setting-up wheel adapted to be moved into and out of-operative position, a printing device, accumulating mechanism, means for rendering said pivotally mounted teeth operative to actuate said printing device and accumulating mechanism, and means for returning said operainoperative position after said operative teeth have passed said.printing device and before the same have been able' to actuate said accumulating mechanism.

3. In a computing machine, the combination of an operable setting-up wheel, shiftable teeth on said setting-up wheel adapted to be moved into and out of operative position, printing and accumulating mechanisms anranged to be actuated in sequence by said teeth, and means for rendering said teeth inoperative after the latter have actuated said printing mechanism.

4. In a computing machine, the combination of an operable setting-up wheel, shiftable "teeth on said setting-up wheel adapted to be-moved into and out of operative position, printing and accumulating mechamsms arranged to be actuated in sequence by said teeth, a rotatable shaft, 2." ra-' dially projecting member on said shaft and arranged in the path of said teeth to render the latter inoperative after actuating the first of saidmechanisms to be actuated. and a handle on said shaft for moving said member into operative position.

5. In a computing machine, the combination of an operable setting-up wheel, shiftable teeth on said setting-u wheel adapted to be moved into and out o operative position, printing and accumulating mechanisms arranged to be'actuated in sequence by said teeth, a rotatable shaft, a radially project-- teeth, a rotatable shaft, a lly p'rojectw mg member on said shaft arranged in the" path of said teeth to render the latter inopseguence by said ra 1a erative after actuating the first of said mechanisms to be actuated, a handle on said shaft for moving said member into operative position, and means for retaining said member in its operative and inoperative positions.

7. In a computing machine, the combination of, an operable setting-up wheel, means for revolving said setting-up Wheel, teeth mounted on said setting-up wheel and adapted to be moved into and out of operative position, means for rendering one or a plurality of said teeth operative, a printing device adapted to be actuated by any of said teeth rendered bperative, accumulating mechanism adapted to be actuated by any of said teeth rendered operative, the consecutive order of said printingdevice and said accumulating mechanism being such that any of said teeth rendered operative must first actuate said printing device, means for returning to inoperative position any of said teeth rendered operative, whereby said printing device may be actuated while said accumulating mechanism remains unaltered, and means for moving said teeth returnin means into operative position and out of operative position.

8. In a computing machine, the combination, of an operable element, shiftable numeral-setting members on said elementand adapted to be moved into and out of operative position, a printing device, an accumulating mechanism, means for rendering said members operative to actuate said printing device andsaid accumulating mechanism,

and means situated intermediate the print-c ing device and accumulating mechanism for rendering operatively positioned members inoperative after the latter have actuated the printing device. I 9. In a computing machine, the combination of an operable element, shiftable numeral-setting members on said element and adapted to be moved into and out of operative position, a printing device, an accumulating mechanism, means for rendering said members operative to actuate said printing device and said accumulating mechanism, means situated intermediate the 'printing device and accumulating mechanism for rendering operatively positioned members inoperative after the latter have actuated the printing device, and means for automatically rendering said last mentioned means ineffective upon the members after the operatively positioned members have been rendered inoperative thereby.

10. In a computing machine, the combination of an operable element, shiftable numeral-setting members on said element and adapted to be moved into and out of operative position, mechanism to be actuated by said members, means for rendering an operative member inoperative after the member has actuated said mechanism, said means be ing movable into and out of efi'ective position, and means for yieldabl locking said last mentioned means in its e ective andrineffective positions.

11. In a computing machine, the combination of shiftable numeral-settin members adapted to be moved into an out of operable position, means for supporting and retaining said members in relative position, a plurality of mechanisms arranged to be actuated by said members, and means for rendering operatively positioned members inoperative after the latter have actuated certain of said mechanisms.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FRANZ TRINKS. Witnesses RICHARD Kt'iLBs, WILHELM, LEHRKE- Copies of this patent my be obtained for Me cents each, by addressing the "Commissioner of 2mm,

Washington, D. 0. 

